HACH DPC1R3A Digital pH ORP Sensor 0-14 pH PPS HF-Resistant
Introduction:
The HACH DPC1R3A is a digital combination pH/ORP sensor. It measures from 0 to 14 pH with 0.1 pH accuracy. The HF-resistant glass electrode withstands harsh chemicals. This sensor includes a digital gateway and extension cable.
Customer Reviews
UBEST Automation – Trusted Global Automation Parts Supplier
We offer a wide range of in-stock industrial automation spare parts. All products come with a 12-month warranty and a 30-day refund for quality issues.
Product Attributes:
Notice: For real-time prices and inventory, please click the button below to contact us.
Product Overview
The HACH DPC1R3A belongs to the Digital Differential Series. Its product type is a Digital Combination pH/ORP Sensor. The product classification is Sensor, Transducer & Probe. The current price for this item is ¥5,450 RMB. The product gross weight is 0.95 kg.
This HACH DPC1R3A provides reliable pH measurement for demanding applications. The sensor combines pH and ORP capabilities in one rugged body. It uses an HF-resistant glass electrode for aggressive environments. The PPS body offers excellent chemical resistance. This Digital Combination pH/ORP Sensor works perfectly for industrial process control.
Technical Specifications
Measurement Range and Accuracy
The measurement range is 0 to 14 pH. Accuracy reaches 0.1 pH under reference conditions. Most applications fall between 2.5 and 12.5 pH. The general purpose glass electrode performs well in this normal range. Some industrial applications need measurement below pH 2 or above pH 12. You should consult Hach Technical Support for these extreme applications.
Body and Electrode Materials
The body material is PPS (Polyphenylene Sulfide). PPS provides excellent resistance to chemicals and high temperatures. The electrode material is an HF-Resistant Glass pH Electrode. This special glass withstands hydrofluoric acid exposure. The HACH DPC1R3A survives in applications that destroy standard glass probes.
Temperature and Pressure Ratings
The operating temperature range is 0 to 105°C. This covers most industrial process conditions. The pressure range reaches 0 to 6.9 bar at 100°C. In imperial units, this is 0 to 100 psig at 212°F. These ratings make the DPC1R3A suitable for high-temperature and high-pressure applications.
Cable and Connection Details
The sensor includes an integral coaxial cable. This cable also contains two conductors for a temperature compensator option. The standard cable length is 4.5 meters (15 feet). The sensor thread size is 0.75 inches. This standard thread fits most industrial adapters and fittings.
Temperature Compensation
Temperature compensation uses a Pt 1000 ohm RTD. This platinum resistance thermometer provides accurate temperature readings. The RTD compensates for pH changes caused by temperature variations. Automatic temperature compensation ensures measurement accuracy across the full 0 to 105°C range.
Signal Transmission Distance
The maximum signal transmission distance is 1000 meters (3280 feet). This long distance requires specific Hach equipment. You need the Hach Digital Gateway, Termination Box, and sc100 Controller. This system allows remote sensor placement far from the control room.
What's Included in the Box
The HACH DPC1R3A package includes several components. You receive the sensor with a 15-foot cable attached. A digital gateway comes included for signal conversion. A 3-foot digital extension cable provides connection flexibility. You also get the product manual for installation guidance.
Installation Guide
Follow these steps to install your HACH DPC1R3A correctly.
Prepare Mounting Point: Ensure your process connection has a 0.75-inch female thread. Verify the mounting location allows easy access for maintenance.
Attach Sensor: Screw the DPC1R3A into the process fitting by hand. Tighten with a wrench one-quarter turn past hand-tight.
Connect Digital Gateway: Plug the sensor cable into the digital gateway. The gateway converts the signal for long-distance transmission.
Install Extension Cable: Connect the 3-foot digital extension cable between the gateway and termination box. Ensure the connectors lock securely.
Run Cable to Controller: Route the cabling to your sc100 Controller. The maximum distance is 1000 meters when using all Hach components.
Power Up: Apply power to the sc100 Controller. The HACH DPC1R3A will automatically begin transmitting digital pH data.
Calibrate: Perform a two-point or three-point calibration using standard buffer solutions. Verify the readings match the expected pH values.
Package List
1 x HACH DPC1R3A Digital Combination pH/ORP Sensor
1 x Integral coaxial cable with temperature compensator conductors (4.5m / 15ft)
1 x Hach Digital Gateway
1 x Digital extension cable (0.9m / 3ft)
1 x Product manual and installation guide
Frequently Asked Questions (FAQ)
1. Can the HACH DPC1R3A measure ORP as well as pH?
Yes, this is a combination pH/ORP sensor. It can measure both parameters using the same electrode system.
2. What makes the HF-resistant glass electrode special?
Standard pH glass degrades quickly in hydrofluoric acid environments. The DPC1R3A uses special glass that resists HF attack. This extends sensor life in aggressive chemical applications.
3. How far can I place this sensor from my controller?
The maximum transmission distance is 1000 meters (3280 feet). You must use the Hach Digital Gateway, Termination Box, and sc100 Controller to achieve this distance.
4. Does the HACH DPC1R3A need a separate temperature probe?
No, the sensor includes a built-in Pt 1000 ohm RTD. This provides automatic temperature compensation without an external probe.
5. What happens if I exceed 6.9 bar pressure at 100°C?
Exceeding the pressure rating may damage the sensor. The DPC1R3A could leak process fluid into the electronics. Always operate within the specified 0 to 6.9 bar range at 100°C. For higher pressures, consult Hach for alternative models.